No dial tone
Is the Synergy 900 telephone line cord plugged into the phone socket?
Check that the base station is connected to the mains power and switched on.
You cannot link up with the base station
If the display shows REG, the handset must be registered with the Synergy 900. See page 24.
Is the display flashing the 
. The mains power cable may not be connected at the base or switched on.
Are you in range of the base station?
Battery could be low or flat.
If using more than one base station, check that you are connected to the correct base.
See page 29.
No ring on the handset or base station
The ringer volume may be switched off.
To adjust the ringer volume on the base station, see page 14.
Check that the Synergy 900 is plugged into the phone socket.
Check that the base station is plugged into the mains power and switched on.
Handset beeps every 10 seconds during a call
Are the handset batteries low?
Have you subscribed to Call Waiting? It may be another call coming in. Press the Recall button to take the new call.
Buzzing noise on my radio, TV, computer or hearing aid
Sometimes, your Synergy 900 can interfere with other electrical equipment, e.g. answering machines, TV and radio sets, clock radio/alarms and computers if placed too close. It is recommended that you place your Synergy 900 and other Synergy handsets at least one metre away from such appliances to avoid any risk of interference.
The charger does not appear to be working
Check that:
•the power adaptor is properly plugged into the charger;
•your handset has slotted correctly into the charger.
•the battery is fitted correctly into the handset.
Are you using the correct power adaptor?
Synergy 900 power supply unit 871340. Synergy charger power supply unit 871273.
Intercom does not work
Check that you have pressed the Intercom button followed by the correct handset number.
Cannot adjust options setting in the base station
Is someone else making changes via another handset? Have you pressed the ✔ button to confirm your selection.
If you are still experiencing difficulty, call the Synergy Helpline on 0845 650 20 20.
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